Home / 1,280,405.58-1,766,995.34-707,482.65

Finding the Fourth Proportional to 1,280,405.58, 1,766,995.34 and 707,482.65

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Solution

The fourth proportional to 1,280,405.58, 1,766,995.34 and 707,482.65 is: 976,345.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,405.58 : 1,766,995.34 = 707,482.65 : x
  2. Step 2: Convert to fraction form
    1,280,405.58/1,766,995.34 = 707,482.65/x
  3. Step 3: Cross multiply
    1,280,405.58x = 1,766,995.34 × 707,482.65
  4. Step 4: Simplify right side
    1,280,405.58x = 1,250,118,545,680.85
  5. Step 5: Solve for x
    x = 1,250,118,545,680.85/1,280,405.58
  6. Step 6: Final answer
    x = 976,345.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.